CN216881621U

CN216881621U - High-pressure high-temperature-resistant hydraulic cylinder casting for hydraulic machinery

Info

Publication number: CN216881621U
Application number: CN202220606303.8U
Authority: CN
Inventors: 代云超
Original assignee: Qingdao Hongruiyuan Machinery Manufacturing Co ltd
Current assignee: Qingdao Hongruiyuan Machinery Manufacturing Co ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-07-05
Anticipated expiration: 2032-03-18

Abstract

The utility model discloses a high-pressure high-temperature resistant hydraulic cylinder casting for hydraulic machinery, which comprises a base, wherein the upper end of the base is fixedly connected with a lower die, an upper die is arranged above the lower die, the upper end of the base is fixedly connected with two symmetrically arranged screw rods, the side wall of the upper die is fixedly connected with two fixed blocks, the two fixed blocks are respectively sleeved on the two screw rods in a sliding manner, a buffer mechanism for buffering the upper die is arranged on each of the two screw rods, a forming groove is formed in the upper end of the lower die, a cooling cavity is formed in the lower die, a cavity is further formed in the lower die, and a liquid pumping mechanism for pumping liquid into the cooling cavity is arranged in the cavity. The cooling device is reasonable in structure, and the forming groove is cooled by the aid of the liquid pumping mechanism, so that the deformation of the mold due to continuous high temperature can be effectively prevented while the cooling efficiency is improved.

Description

High-pressure high-temperature-resistant hydraulic cylinder casting for hydraulic machinery

Technical Field

The utility model relates to the technical field of precision casting molds, in particular to a high-pressure high-temperature resistant hydraulic cylinder casting for hydraulic machinery.

Background

The cast is a metal molded article obtained by various casting methods, that is, an article obtained by pouring, injecting, sucking or other casting methods into a mold prepared in advance and cooling the molten liquid metal.

The hydraulic cylinder is used as one of important parts in industrial production, is quite wide in application, is usually produced in a casting mode for improving the production efficiency, and can be taken out after a workpiece is naturally cooled in the traditional casting process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a high-pressure high-temperature resistant hydraulic cylinder casting for hydraulic machinery.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a high-pressure high-temperature resistant hydraulic cylinder casting for hydraulic machinery comprises a base, wherein a lower die is fixedly connected to the upper end of the base, an upper die is arranged above the lower die, two symmetrically arranged screw rods are fixedly connected to the upper end of the base, two fixed blocks are fixedly connected to the side wall of the upper die and are respectively sleeved on the two screw rods in a sliding manner, a buffer mechanism used for buffering the upper die is arranged on each screw rod, a forming groove is formed in the upper end of the lower die, a cooling cavity is formed in the lower die, a cavity is further formed in the lower die, a pump liquid mechanism used for pumping liquid into the cooling cavity is arranged in the cavity and comprises a piston connected in the cavity in a sliding manner, a one-way valve is arranged in the piston, the right end of the cavity is communicated with the right end of the cooling cavity through a liquid conveying pipe, and the left upper end of the cavity is communicated with the left end of the cooling cavity through a liquid discharging pipe, and the lower die is provided with a moving mechanism for moving the piston.

Preferably, the buffer mechanism comprises a moving plate connected to the screw in a sliding manner, and the lower end of the moving plate is elastically connected with the upper end of the base through a spring.

Preferably, the moving mechanism comprises a power motor fixedly connected to the side wall of the lower die, the tail end of an output shaft of the power motor is fixedly connected with a reciprocating lead screw, and one end, far away from the power motor, of the reciprocating lead screw is rotatably connected to the inner wall of the cavity.

Preferably, the reciprocating lead screw passes through the piston, and the reciprocating lead screw is matched with the piston.

Preferably, the two screw rods are in threaded connection with nuts, and the two nuts are in a circular design.

Preferably, be provided with the feed liquor pipe on the lateral wall of lower mould, the tip of feed liquor pipe extends to in the cavity, the upper end of going up the mould is provided with the feed inlet.

Compared with the prior art, the utility model has the beneficial effects that:

1. through setting up pump liquid mechanism, pour into the shaping inslot with the metal liquid by the feed inlet, drive power motor's output shaft rotates afterwards, it rotates to drive reciprocal lead screw, thereby drive and in the cavity reciprocating motion rather than complex piston, when the piston moves left, the check valve is opened, the coolant liquid gets into in the cavity on the right side of piston by the check valve, the check valve is closed when the piston moves right and is gone into the cooling chamber with the coolant liquid by the transfer line pump, the realization is cooled off the shaping inslot, can effectually prevent that the mould from lasting high temperature and taking place to warp when improving cooling efficiency.

2. Through setting up buffer gear, when putting down the mould, under the effect of spring and movable plate, can cushion the mould, when the effectual mould that prevents to put down, the impact force is great, causes the damage to the lower mould.

Drawings

FIG. 1 is a perspective view of a high-pressure, high-temperature resistant hydraulic cylinder casting for a hydraulic machine according to the present invention;

FIG. 2 is a schematic view of a lower die structure of a high-pressure high-temperature resistant hydraulic cylinder casting for a hydraulic machine according to the present invention;

fig. 3 is an enlarged view of a structure in fig. 1.

In the figure: the device comprises an upper die 1, a lower die 2, a base 3, a feed inlet 4, a power motor 5, a liquid inlet pipe 6, a liquid discharge pipe 7, a forming groove 8, a cooling cavity 9, a liquid conveying pipe 10, a reciprocating screw rod 11, a one-way valve 12, a piston 13, a screw rod 14, a nut 15, a fixed block 16 and a moving plate 17.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar tables are used herein for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1-3, a high-pressure high-temperature resistant hydraulic cylinder casting for hydraulic machinery comprises a base 3, a lower die 2 is fixedly connected to the upper end of the base 3, a liquid inlet pipe 6 is arranged on the side wall of the lower die 2, the end portion of the liquid inlet pipe 6 extends into a cavity, a feed inlet 4 is arranged at the upper end of the upper die 1, an upper die 1 is arranged above the lower die 2, two symmetrically arranged screw rods 14 are fixedly connected to the upper end of the base 3, two fixing blocks 16 are fixedly connected to the side wall of the upper die 1, the two fixing blocks 16 are respectively sleeved on the two screw rods 14 in a sliding mode, nuts 15 are connected to the two screw rods 14 in a threaded mode, and the two nuts 15 are in a circular design.

The two screws 14 are respectively provided with a buffer mechanism for buffering the upper die 1, the buffer mechanisms comprise moving plates 17 which are connected to the screws 14 in a sliding mode, and the lower ends of the moving plates 17 are elastically connected with the upper end of the base 3 through springs.

The upper end of lower mould 2 has seted up the shaping groove 8, cooling chamber 9 has been seted up to the inside of lower mould 2, the cavity has still been seted up in lower mould 2, be provided with the pump liquid mechanism that is used for carrying out the pump liquid to cooling chamber 9 in the cavity, pump liquid mechanism includes sliding connection piston 13 in the cavity, it needs to note, when piston 13 moves left, check valve 12 opens, the coolant liquid gets into the cavity on the right side of piston 13 by check valve 12, check valve 12 closes when piston 13 moves right, this check valve 12 keeps away from the same with the check valve in the water well water squeezer, be provided with check valve 12 in the piston 13, the right-hand member of cavity and the right-hand member of cooling chamber 9 pass through transfer line 10 intercommunication, the left side upper end of cavity and the left end of cooling chamber 9 pass through fluid-discharge tube 7 intercommunication.

Be provided with on lower mould 2 and be used for carrying out the moving mechanism that removes to piston 13, moving mechanism includes power motor 5 of fixed connection on 2 lateral walls of lower mould, and power motor 5's the terminal fixedly connected with of output shaft reciprocates lead screw 11, and reciprocal lead screw 11 passes piston 13, and reciprocal lead screw 11 cooperatees with piston 13, and the one end rotation connection that power motor 5 was kept away from to reciprocal lead screw 11 is on the inner wall of cavity.

When the cooling device is used, molten metal is poured into the forming groove 8 from the feeding hole 4, then the output shaft of the power motor 5 is driven to rotate, the reciprocating screw rod 11 is driven to rotate, the piston 13 matched with the reciprocating screw rod is driven to reciprocate in the cavity, when the piston 13 moves leftwards, the one-way valve 12 is opened, cooling liquid enters the cavity on the right side of the piston 13 from the one-way valve 12, when the piston 13 moves rightwards, the one-way valve 12 is closed, the cooling liquid is pumped into the cooling cavity 9 from the liquid conveying pipe 10, the forming groove 8 is cooled, the cooling efficiency is improved, and meanwhile, deformation of a mold due to continuous high temperature can be effectively prevented;

when the upper die 1 is put down, the upper die 1 can be buffered under the action of the spring and the moving plate 17, and the damage to the lower die 2 caused by large impact force when the upper die 1 is put down is effectively prevented.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The high-pressure high-temperature resistant hydraulic cylinder casting for the hydraulic machine comprises a base (3) and is characterized in that the upper end of the base (3) is fixedly connected with a lower die (2), an upper die (1) is arranged above the lower die (2), the upper end of the base (3) is fixedly connected with two symmetrically arranged screw rods (14), the side wall of the upper die (1) is fixedly connected with two fixed blocks (16), the two fixed blocks (16) are respectively sleeved on the two screw rods (14) in a sliding manner, the two screw rods (14) are both provided with a buffer mechanism for buffering the upper die (1), the upper end of the lower die (2) is provided with a forming groove (8), a cooling cavity (9) is formed in the lower die (2), a cavity is further formed in the lower die (2), and a pump fluid mechanism for pumping fluid to the cooling cavity (9) is arranged in the cavity, pump liquid mechanism includes piston (13) of sliding connection in the cavity, be provided with check valve (12) in piston (13), the right-hand member of cavity passes through transfer line (10) intercommunication with the right-hand member of cooling chamber (9), the left side upper end of cavity passes through fluid-discharge tube (7) intercommunication with the left end of cooling chamber (9), be provided with on lower mould (2) and be used for carrying out the moving mechanism that removes piston (13).

2. The high-pressure high-temperature resistant hydraulic cylinder casting for hydraulic machinery as claimed in claim 1, wherein the buffer mechanism comprises a moving plate (17) slidably connected to the screw (14), and the lower end of the moving plate (17) is elastically connected to the upper end of the base (3) through a spring.

3. The high-pressure high-temperature-resistant hydraulic cylinder casting for the hydraulic machine as claimed in claim 2, wherein the moving mechanism comprises a power motor (5) fixedly connected to the side wall of the lower die (2), a reciprocating lead screw (11) is fixedly connected to the tail end of an output shaft of the power motor (5), and one end of the reciprocating lead screw (11) far away from the power motor (5) is rotatably connected to the inner wall of the cavity.

4. The high-pressure high-temperature resistant hydraulic cylinder casting for hydraulic machinery as claimed in claim 3, wherein the reciprocating lead screw (11) penetrates through the piston (13), and the reciprocating lead screw (11) is matched with the piston (13).

5. The high-pressure high-temperature resistant hydraulic cylinder casting for hydraulic machinery as claimed in claim 1, wherein nuts (15) are screwed on both of the two threaded rods (14), and both of the nuts (15) are of circular design.

6. The high-pressure high-temperature resistant hydraulic cylinder casting for the hydraulic machine according to claim 1, wherein a liquid inlet pipe (6) is arranged on the side wall of the lower die (2), the end of the liquid inlet pipe (6) extends into the cavity, and a feed inlet (4) is arranged at the upper end of the upper die (1).